config_gram.c

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    break;}
case 115:
#line 834 "../config_gram.y"
{
      current_mem->readsize = yyvsp[0]->value.number;
      free_token(yyvsp[0]);
    ;
    break;}
case 116:
#line 840 "../config_gram.y"
{
      current_mem->pollindex = yyvsp[0]->value.number;
      free_token(yyvsp[0]);
    ;
    break;}
case 117:
#line 846 "../config_gram.y"
{
    { 
      int opnum;
      OPCODE * op;

      opnum = which_opcode(yyvsp[-2]);
      op = avr_new_opcode();
      parse_cmdbits(op);
      current_mem->op[opnum] = op;

      free_token(yyvsp[-2]);
    }
  ;
    break;}
}
   /* the action file gets copied in in place of this dollarsign */
#line 543 "/usr/share/bison.simple"

  yyvsp -= yylen;
  yyssp -= yylen;
#ifdef YYLSP_NEEDED
  yylsp -= yylen;
#endif

#if YYDEBUG != 0
  if (yydebug)
    {
      short *ssp1 = yyss - 1;
      fprintf (stderr, "state stack now");
      while (ssp1 != yyssp)
	fprintf (stderr, " %d", *++ssp1);
      fprintf (stderr, "\n");
    }
#endif

  *++yyvsp = yyval;

#ifdef YYLSP_NEEDED
  yylsp++;
  if (yylen == 0)
    {
      yylsp->first_line = yylloc.first_line;
      yylsp->first_column = yylloc.first_column;
      yylsp->last_line = (yylsp-1)->last_line;
      yylsp->last_column = (yylsp-1)->last_column;
      yylsp->text = 0;
    }
  else
    {
      yylsp->last_line = (yylsp+yylen-1)->last_line;
      yylsp->last_column = (yylsp+yylen-1)->last_column;
    }
#endif

  /* Now "shift" the result of the reduction.
     Determine what state that goes to,
     based on the state we popped back to
     and the rule number reduced by.  */

  yyn = yyr1[yyn];

  yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
  if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
    yystate = yytable[yystate];
  else
    yystate = yydefgoto[yyn - YYNTBASE];

  goto yynewstate;

yyerrlab:   /* here on detecting error */

  if (! yyerrstatus)
    /* If not already recovering from an error, report this error.  */
    {
      ++yynerrs;

#ifdef YYERROR_VERBOSE
      yyn = yypact[yystate];

      if (yyn > YYFLAG && yyn < YYLAST)
	{
	  int size = 0;
	  char *msg;
	  int x, count;

	  count = 0;
	  /* Start X at -yyn if nec to avoid negative indexes in yycheck.  */
	  for (x = (yyn < 0 ? -yyn : 0);
	       x < (sizeof(yytname) / sizeof(char *)); x++)
	    if (yycheck[x + yyn] == x)
	      size += strlen(yytname[x]) + 15, count++;
	  msg = (char *) malloc(size + 15);
	  if (msg != 0)
	    {
	      strcpy(msg, "parse error");

	      if (count < 5)
		{
		  count = 0;
		  for (x = (yyn < 0 ? -yyn : 0);
		       x < (sizeof(yytname) / sizeof(char *)); x++)
		    if (yycheck[x + yyn] == x)
		      {
			strcat(msg, count == 0 ? ", expecting `" : " or `");
			strcat(msg, yytname[x]);
			strcat(msg, "'");
			count++;
		      }
		}
	      yyerror(msg);
	      free(msg);
	    }
	  else
	    yyerror ("parse error; also virtual memory exceeded");
	}
      else
#endif /* YYERROR_VERBOSE */
	yyerror("parse error");
    }

  goto yyerrlab1;
yyerrlab1:   /* here on error raised explicitly by an action */

  if (yyerrstatus == 3)
    {
      /* if just tried and failed to reuse lookahead token after an error, discard it.  */

      /* return failure if at end of input */
      if (yychar == YYEOF)
	YYABORT;

#if YYDEBUG != 0
      if (yydebug)
	fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
#endif

      yychar = YYEMPTY;
    }

  /* Else will try to reuse lookahead token
     after shifting the error token.  */

  yyerrstatus = 3;		/* Each real token shifted decrements this */

  goto yyerrhandle;

yyerrdefault:  /* current state does not do anything special for the error token. */

#if 0
  /* This is wrong; only states that explicitly want error tokens
     should shift them.  */
  yyn = yydefact[yystate];  /* If its default is to accept any token, ok.  Otherwise pop it.*/
  if (yyn) goto yydefault;
#endif

yyerrpop:   /* pop the current state because it cannot handle the error token */

  if (yyssp == yyss) YYABORT;
  yyvsp--;
  yystate = *--yyssp;
#ifdef YYLSP_NEEDED
  yylsp--;
#endif

#if YYDEBUG != 0
  if (yydebug)
    {
      short *ssp1 = yyss - 1;
      fprintf (stderr, "Error: state stack now");
      while (ssp1 != yyssp)
	fprintf (stderr, " %d", *++ssp1);
      fprintf (stderr, "\n");
    }
#endif

yyerrhandle:

  yyn = yypact[yystate];
  if (yyn == YYFLAG)
    goto yyerrdefault;

  yyn += YYTERROR;
  if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
    goto yyerrdefault;

  yyn = yytable[yyn];
  if (yyn < 0)
    {
      if (yyn == YYFLAG)
	goto yyerrpop;
      yyn = -yyn;
      goto yyreduce;
    }
  else if (yyn == 0)
    goto yyerrpop;

  if (yyn == YYFINAL)
    YYACCEPT;

#if YYDEBUG != 0
  if (yydebug)
    fprintf(stderr, "Shifting error token, ");
#endif

  *++yyvsp = yylval;
#ifdef YYLSP_NEEDED
  *++yylsp = yylloc;
#endif

  yystate = yyn;
  goto yynewstate;

 yyacceptlab:
  /* YYACCEPT comes here.  */
  if (yyfree_stacks)
    {
      free (yyss);
      free (yyvs);
#ifdef YYLSP_NEEDED
      free (yyls);
#endif
    }
  return 0;

 yyabortlab:
  /* YYABORT comes here.  */
  if (yyfree_stacks)
    {
      free (yyss);
      free (yyvs);
#ifdef YYLSP_NEEDED
      free (yyls);
#endif
    }
  return 1;
}
#line 862 "../config_gram.y"


#if 0
static char * vtypestr(int type)
{
  switch (type) {
    case V_NUM : return "NUMERIC";
    case V_STR : return "STRING";
    default:
      return "<UNKNOWN>";
  }
}
#endif


static int assign_pin(int pinno, TOKEN * v, int invert)
{
  int value;

  value = v->value.number;

  if ((value <= 0) || (value >= 18)) {
    fprintf(stderr, 
            "%s: error at line %d of %s: pin must be in the "
            "range 1-17\n",
            progname, lineno, infile);
    exit(1);
  }
  if (invert)
    value |= PIN_INVERSE;

  current_prog->pinno[pinno] = value;

  return 0;
}


static int which_opcode(TOKEN * opcode)
{
  switch (opcode->primary) {
    case K_READ        : return AVR_OP_READ; break;
    case K_WRITE       : return AVR_OP_WRITE; break;
    case K_READ_LO     : return AVR_OP_READ_LO; break;
    case K_READ_HI     : return AVR_OP_READ_HI; break;
    case K_WRITE_LO    : return AVR_OP_WRITE_LO; break;
    case K_WRITE_HI    : return AVR_OP_WRITE_HI; break;
    case K_LOADPAGE_LO : return AVR_OP_LOADPAGE_LO; break;
    case K_LOADPAGE_HI : return AVR_OP_LOADPAGE_HI; break;
    case K_WRITEPAGE   : return AVR_OP_WRITEPAGE; break;
    case K_CHIP_ERASE  : return AVR_OP_CHIP_ERASE; break;
    case K_PGM_ENABLE  : return AVR_OP_PGM_ENABLE; break;
    default :
      fprintf(stderr, 
              "%s: error at %s:%d: invalid opcode\n",
              progname, infile, lineno);
      exit(1);
      break;
  }
}


static int parse_cmdbits(OPCODE * op)
{
  TOKEN * t;
  int bitno;
  char ch;
  char * e;
  char * q;
  int len;
  char * s, *brkt;

  bitno = 32;
  while (lsize(string_list)) {

    t = lrmv_n(string_list, 1);

    s = strtok_r(t->value.string, " ", &brkt);
    while (s != NULL) {

      bitno--;
      if (bitno < 0) {
        fprintf(stderr, 
                "%s: error at %s:%d: too many opcode bits for instruction\n",
                progname, infile, lineno);
        exit(1);
      }

      len = strlen(s);

      if (len == 0) {
        fprintf(stderr, 
                "%s: error at %s:%d: invalid bit specifier \"\"\n",
                progname, infile, lineno);
        exit(1);
      }

      ch = s[0];

      if (len == 1) {
        switch (ch) {
          case '1':
            op->bit[bitno].type  = AVR_CMDBIT_VALUE;
            op->bit[bitno].value = 1;
            op->bit[bitno].bitno = bitno % 8;
            break;
          case '0':
            op->bit[bitno].type  = AVR_CMDBIT_VALUE;
            op->bit[bitno].value = 0;
            op->bit[bitno].bitno = bitno % 8;
            break;
          case 'x':
            op->bit[bitno].type  = AVR_CMDBIT_IGNORE;
            op->bit[bitno].value = 0;
            op->bit[bitno].bitno = bitno % 8;
            break;
          case 'a':
            op->bit[bitno].type  = AVR_CMDBIT_ADDRESS;
            op->bit[bitno].value = 0;
            op->bit[bitno].bitno = 8*(bitno/8) + bitno % 8;
            break;
          case 'i':
            op->bit[bitno].type  = AVR_CMDBIT_INPUT;
            op->bit[bitno].value = 0;
            op->bit[bitno].bitno = bitno % 8;
            break;
          case 'o':
            op->bit[bitno].type  = AVR_CMDBIT_OUTPUT;
            op->bit[bitno].value = 0;
            op->bit[bitno].bitno = bitno % 8;
            break;
          default :
            fprintf(stderr, 
                    "%s: error at %s:%d: invalid bit specifier '%c'\n",
                    progname, infile, lineno, ch);
            exit(1);
            break;
        }
      }
      else {
        if (ch == 'a') {
          q = &s[1];
          op->bit[bitno].bitno = strtol(q, &e, 0);
          if ((e == q)||(*e != 0)) {
            fprintf(stderr, 
                    "%s: error at %s:%d: can't parse bit number from \"%s\"\n",
                    progname, infile, lineno, q);
            exit(1);
          }
          op->bit[bitno].type = AVR_CMDBIT_ADDRESS;
          op->bit[bitno].value = 0;
        }
        else {
          fprintf(stderr, 
                  "%s: error at %s:%d: invalid bit specifier \"%s\"\n",
                  progname, infile, lineno, s);
          exit(1);
        }
      }

      s = strtok_r(NULL, " ", &brkt);
    }

    free_token(t);

  }  /* while */

  return 0;
}